Black dot on the white part of the eye - with pics

Ive got this black mole thing on the white part on both of my eyes since i was small. I notice that the last month its been moving a lot closer to the black bit ( pupil ) area. Use to be a lot further down
I've been to the opticians to get contacts recently and ive been denied twice because i have a eye infection.
I've been using Chloramphenical for two weeks now and the opticans also told me to use Lucra lube a night.
My eye prescription is high -7.00 and -5.00 - and i've recently stopped my studies with computing so my eyes wont get worse.
I also went to the local GP, and he says the the black dots are likely to be freckles, and i've to only go back if it move closer or bigger - i dont want it to be too late by then

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